Model 116 tombstone - Printable Version

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+--- Thread: Model 116 tombstone (/showthread.php?tid=876)

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Model 116 tombstone - Chris Drumma - 12-12-2007

Any major issues with restoring this one? Anything unusual or tricky with the restoration. I have a chance to get one but do not want to get in over my head.
thanks
Chris

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- rghines1 - 12-12-2007

Hi,
Rebuilt one some years ago.

1) The ball bearing assembly in the tuning mechanism will likely need to be taken apart, cleaned, and re-greased.

2) Lamp bases will need rebuilding with new phenolic washers.

3) The shadow meter coil is usually open.

4) About a dozen bakelite blocks, 4 miscellanous caps inside a can, and the tone control is a capacitor block that will need rebuilding too.

5) Alignment procedure is lengthy but worth the effort.

More info on all these things is available at philcorepairbench.com and philcoradio.com. If you need a dial scale, Mark Oppat has them at oldradioparts.net.

Richard

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- Ron Ramirez - 12-19-2007

Hi Richard

Can you give details on disassembly/reassembly of the 116 tuning mechanism? I once tried to disassemble one of these...with disastrous results.

Your input would be very much appreciated...

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- rghines1 - 12-21-2007

Hi Ron,

Your reply gave me impetus to pull another Philco off the shelf to go through the cleaning and lube of the dial drive mechanism. Couldn't recall much from 7 years ago.

Were you having trouble getting to the mechanism shown in the link below to remove it from the chassis?

http://www.philcorepairbench.com/tips/svctip14.htm

If so maybe you didn't realize the setscrew had to be loosen on the sector ring piece. This is not so obvious. Then you pull out the axle and hub the dial scale rides on.

The dial drive reminds me of a planetary gear system except it uses ball bearings instead.

Once you have the dial drive mechanism out. Now you can take it apart to clean and lubricate the inner workings. The grease typically has become petrified. Pull the retaining clip off. Next you will need to push in on the center shaft (fine tuning) to unload the ball bearings, then the innards will pull out of the housing. The cutaway drawing in the link show 2 ball bearings (3 total) against a tapered shaft, actually it is somewhat concave which keeps fining tuning shaft in position. Prefer white lithium grease.

Hopes this was of some help.

Richard

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